A prototype EMT‐TF is Snail1/SNAI1, a member of the Snail/Scratch family of zinc finger (ZF) transcription factors, which together with Snail2/SNAI2/Slug play important roles in mediating the EMT during embryonic development and cancer progression (Barrallo‐Gimeno and Nieto, 2009; Baulida and Garcia de Herreros, 2015). This evidence concerns the gene SNAI2 and cancer.